Cambodian police have arrested four Thai nationals, alleged to be members of a Cambodia-based call centre gang implicated in cheating a Thai family in Samut Prakan, which ultimately led to the head of the family killing his wife and two children in desperation and unsuccessfully attempting suicide.

Pol Gen Surachate Hakparn, the deputy national police chief, told the media this evening (Sunday) that he has been informed, by the Cambodian national security command, about the arrests of one man and three women, wanted in Thailand for the alleged online fraud, which resulted in about 1.7 million baht being owed to the call centre by the family.

He alleged that the male suspect is a supervisor of Thai nationals working for the call centre and is responsible for persuading people in Thailand to open “mule” bank accounts for money transactions.

Twelve other suspects are still at large and are believed to be hiding in Cambodia, said Surachate.

Previously, a 22-year-old Russian national was arrested by Thai police on a charge of money laundering, after he allegedly sold digital coins to a member of the call centre gang.